Adjustable trimming-knife for linotype-machines.



, PATBNTED JAN. 14, 190.8. F. J. GAINE L G. H. MITTON. ADJUSTABLE TRIMMING-KN-IFE FOR LINOTYPE MACHINES.

APPLICATION FILED JUNE 11. 1906.

' www JSM.

Rs cm, wAsmNcwN, D. c

hand side of the machine, and Fig. 2 is a view FRANCIS J. OAINE, OF HOUNSLOW, AND GEORGE H. MITTON, ASSIGNORS TO LINOTYPE & MACHINERY LIMITED, OF

OF WIMBLEDON, ENGLAND, LONDON, ENGLAND.

ADJUSTABLE TRIMMING-KNIFE yFOR LINOTYPE-MACHINES.

Specification of Letters Patent. Application tiled June 11, 1906. Serial N0- 321.295.

No. 876,524. Patented Jan. 14, 1908.

frame and being locked in position by a nut 7 on the outer end of each stud 6. The knife 4 is held to the rear face of the block 5 by bolts T 0 all whom it may concern:

Be it known that we, FRANCIS JOHN i OAINE, of The Lawn, St. Stephens Road, Hounslow, Middlesex, England, and `GEORGE HENRY Mr'rroN, of-() Efira road, Wimblej don, Surrey, England, have invented new j and useful Improvements in the Adjustable l Trimming Knives of Linotype Machines; and we do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in j the art to which it appertains to make and use the same.

the front and screwed into itself near the top and bottom respectively. The holes 9 in the block 5, through which the screws 8 pass, are horizontal slots to admit of the lateral adjustment of the right hand knife 4 to and from its fellow knife 1. l

The proper distance at which the knife 4 is to be set from its fellow knife 1, in the above named Mergenthaler machine is settled by slackening the two holding screws 8, and the nuts 7, inserting two U-shaped liners be- (these liners are dispensed The present invention relates to improvements in the adjustable trimming knives of the well-known hlergenthaler linotype machine described in the specification of Letters Patent No. 436532 and it consists in the straddling the respective stud 6, moving up means hereinafter described, illustrated in the adjustable knife 4 by turning the nuts 7 the accompanying drawings, and the novel j till it pinches the two liners between it and features of which are more particularly its fellow, or between it and the usual washer pointed out in the claims. plate 10, and tightening the holding screws 8.

In the said drawings which are to be taken Supplementary set screws 1l are provided to as part of this specification and `read therebear against the top and bottom respectively witl :FFigure 1 is an elevation, partly in of the right side of the knife 4 to effect any section of sufficient of a linotype machine to small adjustment of either top or bottom of illustrate the present invention, this view'bethe knife, or even to adjust the knife altoing a representation as seen from the right gether for the thinnest sizes of linotypes. All the foregoing arrangements are the same as those provided in existing linotype machines.

The present invention offers an economical means by which the adjustable knife 4 may be made readily adjustable at 4a slight cost, and it lends itself to the very easy and ineX- pensive adaptation of existing linotype machines for attaining this same object. In carrying it into effect, each stud hole in the knife block 5 is enlarged and screw-threaded to receive a nipple l2 which fits over the stud 6 as shown clearly in Fig. 2. One end of each nipple l2 bears against the usual washer plate l() which, in turn, bears against the left-hand knife l, or rather the vise frame 3 to which the knife 1 is rigidly attached, and the opposite end bears against the before mentioned nut 7 on the stud 6, so that turning the nipples12 (which is possible after the slackening of the said nuts) travels the knife block 5 to or from the left-hand knife 1. The right-hand end of each nipple 12 has a flange 13 provided with a scale of holes or recesses 14 in its periphery, for the different thicknesses of linotypes, and there coperates with each scale, a spring detent 15. As the position on the two nipple ends of any pair of tween the knives with in the present invention), each hner representing partly an elevation of the righthand side of Fig. l, and partly a vertical section on the line 2-2 of that figure, the said figure as a whole being given as viewed from the rear of the machine so that what are actually the right and left hand knives appear respectively at the left and right of the figure.

The before-mentioned knives are two in number, parallel and vertical, and carried by the vise frame with their cutting edges towards the untrimmed linotype, at a distance apart corresponding with the thickness to which the linotype is to be trimmed, the act of trimming consisting in pushing the linotype, printing edge on, between the knives into the galley. The left hand knife 1 is screwed as by bolts 2 directly to the vise frame 3 and is not adjustable thereon. The right hand knife 4 is screwed to a knife block 5. This knife block is a separate part from the vise frame 3 and is held thereto by being threaded on to two studs 6 which project laterally from the vise frame 3 and pass through the top and bottom respectively of the block 5, the latter fitting up to the vise or screws 8 passed through the block from holes or recesses 14 corresponds with the proper position of the adjustable knife 4, it follows that when the detents 1.5 are engaged with the said pair, the knife is properly adjusted and can then be tightened up by the holding screws 8.

As there are always slight differences in the way the knives of any two machines are mounted, it is preferred that the holes or recesses 14 should not be made in the nipples 12 by the makers of the machine, but should be done by the customers engineer in order that each nipple may be true to its working circumstances, therefore, for convenience, each detent as shown is chisel nosed.

We claim:

1. In linotype trimming apparatus the combination with the adjustable and nonadjustable knives, the knife block to which the adjustable knife is secured, the vise frame to which the non-adjustable knife is secured, and the studs with nuts thereon, tying the knife block and vise frame together, of a nipple screwed into the knife block and concentric with each of the studs, and bearing at one end against the vise frame.

2. In a linotype machine the combination with the adjustable and non adjustable knives, the knife block to which the adjust- ,l able knife is secured, the vise frame to which the non-adjustable knife is secured, and the studs with nuts thereon, tying the knife block and vise frame together, of a flanged nipple screwed into the knife block and concentric with each of the studs and bearing at one end against the vise frame, recesses in the flange of the nipples and a spring detent adapted to engage the said recesses.

3. In linotype trimming apparatus the combination with the adjustable and nonn adjustable knives, the knife block to which the adjustable knife is secured, andthe studs with nuts thereon, tying the knife block and vise frame together, of a flanged nipple screwed into the knife block and concentric with each of the studs and adapted to bear at its opposite ends against respectively the vise frame, and the nut on the respective stud, recesses in the flange of the nipple, and a spring detent adapted to engage the said recesses.

In witness whereof we have hereunto set our hands in the presence of two witnesses.

FRANCIS J CAINE. GEORGE H. MITTON. 

